PDF Lists

The check reports whether each List Item (LI) is a child of List (L). This error could
mean that the structure of a list in your document is incorrectly organized. Lists
must have the following structure: A List element must contain List Item elements. And, List Item Elements can only contain Label Elements and List Item Elements.

To fix the structure:

Find the list in the Accessibility Checker panel by right-clicking (Windows) or Ctrl-clicking (Mac OS) the failed element and
choosing Show in Tags Panel.

Lists must have the following structure: A List element must contain List Item Elements. And, List Item Elements can only contain Label Elements and List Item Body Elements. When this rule-check fails, the structure of this list is incorrect.

To fix the list structure:

Find the list in the Accessibility Checker panel by right-clicking (Windows) or Ctrl-clicking (Mac OS) the failed element and
choosing Show in Tags Panel.